@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/30929048-441c-4676-93cf-2b17d6de0b10> a dcat:Dataset ;
    dct:description """The U.S. Geological Survey, in cooperation with the Town of Barnstable, Massachusetts, 
modified an existing numerical, steady-state regional MODFLOW-2005 groundwater-flow 
model to evaluate changes in water levels from a reference condition (2015) for nine 
pumping and wastewater return flow scenarios prepared by the Hyannis Water System.
		
The three-dimensional, steady-state groundwater-flow model used to simulate water level 
changes is a modified and recalibrated version of an existing model that was used to 
simulate the potential effects of sea-level rise on groundwater levels of the Sagamore 
and Monomoy freshwater lenses of the Cape Cod aquifer (Walter and others, 2016) 
(https://doi.org/10.3133/sir20165058). Two modifications, (1) the addition of spatially 
variable natural recharge from precipitation, and (2) a revised representation of wastewater 
return-flow recharge to septic systems in the Town of Barnstable, were made to the 
existing regional groundwater-flow model for this study. The modified model was 
recalibrated to the same observations of heads and streamflows as those used in the 
original model. The modifications and results of the recalibration are described in the 
appendix of the associated scientific investigations report (https://doi.org/10.3133/sir20195121). 
The model is a mathematical representation of the groundwater-flow system. Several 
assumptions and limitations of the modeling approach are discussed in the report, as 
well as in the scientific investigations report describing the original model 
(https://doi.org/10.3133/sir20165058).
		
This USGS data release contains all the input and output files for the simulations described 
in the associated scientific investigations report  (https://doi.org/10.3133/sir20195121).  
The modified model supersedes the original model described by Walter and others 
(https://doi.org/10.3133/sir20165058).""" ;
    dct:identifier "USGS:ff4d786d-0003-4531-b976-1de8b89e9755" ;
    dct:issued "2025-11-20T19:10:45.628537"^^xsd:dateTime ;
    dct:modified "20201117"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-70.7254 41.4817, -70.7254 41.8655, -69.8894 41.8655, -69.8894 41.4817, -70.7254 41.4817))"^^gsp:wktLiteral ] ;
    dct:title "MODFLOW2005 groundwater-flow model used to simulate water-supply pumping scenarios near the Hyannis Ponds Wildlife Management Area, Barnstable, Massachusetts" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Timothy D. McCobb" ;
            vcard:hasEmail <mailto:tmccobb@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/30929048-441c-4676-93cf-2b17d6de0b10/resource/9d56d4e4-a540-46d2-823f-50edef2acfb3>,
        <https://data.amerigeoss.org/dataset/30929048-441c-4676-93cf-2b17d6de0b10/resource/dabb9f06-ba38-404e-aef1-a8a869702c2a> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "barnstable",
        "bourne",
        "brewster",
        "cape-cod",
        "chatham",
        "ckan",
        "dennis",
        "environment",
        "falmouth",
        "geo",
        "geoscientific-information",
        "geoss",
        "groundwater",
        "groundwater-model",
        "harwich",
        "inland-waters",
        "mashpee",
        "massachusetts",
        "modflow-2005",
        "monomoy-lens",
        "national",
        "north-america",
        "orleans",
        "sagamore-lens",
        "saltwater-intrusion",
        "sandwich",
        "united-states",
        "usgs-ff4d786d-0003-4531-b976-1de8b89e9755",
        "usgsgroundwatermodel",
        "yarmouth" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/30929048-441c-4676-93cf-2b17d6de0b10/resource/9d56d4e4-a540-46d2-823f-50edef2acfb3> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T20:12:39.658633"^^xsd:dateTime ;
    dct:modified "2025-11-20T19:10:45.612211"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.ff4d786d-0003-4531-b976-1de8b89e9755.xml> ;
    dcat:mediaType "text/xml" .

<https://data.amerigeoss.org/dataset/30929048-441c-4676-93cf-2b17d6de0b10/resource/dabb9f06-ba38-404e-aef1-a8a869702c2a> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T20:12:39.658643"^^xsd:dateTime ;
    dct:modified "2025-11-20T19:10:45.612644"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P9U5AKLC> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .